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Factors affecting gadwall brood and duckling survival in prairie pothole landscapes

Journal of Wildlife Management

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Abstract

Waterfowl biologists need reliable predictors of brood and duckling survival to accurately estimate recruitment rates. We examined 30-day survival rates of gadwall (Anas strepera ) broods (1992-1994) and ducklings (1990-1994) in eastern North Dakota during years when water conditions ranged from extremely dry to extremely wet. Despite apparent resilience of gadwall populations during drought, our study documented a positive effect of seasonal wetland availability on gadwall duckling survival. Management efforts to improve recruitment will be more effective in years when most seasonal basins contain water.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Factors affecting gadwall brood and duckling survival in prairie pothole landscapes
Series title:
Journal of Wildlife Management
Volume
67
Issue:
3
Year Published:
2003
Language:
English
Contributing office(s):
Northern Prairie Wildlife Research Center
Description:
p. 564-575
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
564
Last page:
575
Number of Pages:
11